Apparatus for drawing wire



(No Model.)

J. REESE...

APPARATUS FOR DRAWING WIRE, 1 No. 338,359. i ented Mar. 23, 1886.

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' it to be readily rotated as the wire is passing UNITED STATES PATENT ()FFICE.

JACOB REESE, OF PITTSBURG, PENNSYLVANIA.

APPARATUS FOR DRAWING WIRE.

SPECIFICATION forming part of Letters Patent No. 338,359, dated March 23, 1886.

Application filed March 17, 1884. Serial No. 12?,447. (No model.)

To all whom it may concern.-

Be it known that I, JACOB REESE, a citizen of the United States, and a resident of Pitts burg, in the county of Allegheny and State of Pennsylvania, haveinvented a certain new and useful Improvementin Apparatus for Drawing Wire; and I do hereby declare the following to be a full,'clear, and exact descriptionthereof, reference being hadto the accompanying drawings, in which- Figure 1 indicates a side elevation of my improved wire-drawing plant. Fig. 2 indicates a ground plan of the same. Fig. 8 indicates a sectional elevation taken through the liner a: in Fig. 2. Fig. at indicates an enlarged perspective view of the die-block and pressurelever. Fig. 5 indicates an enlarged perspective view of the die-block with the wire in place. Fig. 6 indicates an enlarged side view of the cooling-tube. Fig. 7 indicates an end view of the same.

Like letters of reference indicate like parts wherever they occur.

In drawing wire by the ordinary method the metal is subjected to an alternate series of annealing, pickling, washing, and drawing operations.

In the use of my invention I design to dis pense with the pickling and washing, and merely subject the metal to the action of a combined annealing and drawing operation.

My invention consists, first, in subjecting the wire or wire rod while in a heated state to a drawing operation through resisting dies or compressing mechanism adjusted to cause a tractive force above the. elastic limit of the metal to come upon the wire as it emerges from the resisting mechanism vandin coiling the wire as drawn,except at the particular place where elongation is to. be produced secondly, in mechanism adapted to the use of said method.

I shall now describe the invention fully, so that others skilled in the art may make and use the same.

In the drawings, A indicates a heating-furnace,providedwithafire-chamber, a, or charging-door, a, a reel-door, a and a reel, a. This reel a may be made of iron or steel, and is mounted on a loose shaft or vertical spindle, a, at the central part of the forward portion of the furnace in such a manner as to permit from it through the aperture in the door a in the front of the furnace.

B indicates the framework which supports the drawing mechanism. 6 indicates the main driving-shaft, provided with a beveled gearwheel, I), which meshes into and communicates motion to the beveled gear I)", mounted on the vertical shaft b of the receiving reel or drum b. i 0 indicates a die-frame, which contains a twopart die, 0, which is retained in position by means of its vertical ribs entering vertical slots in the side walls of the groove in the up per part of the dieframe.

0 indicates a weighted lever pivotally at tached by a connecting-rod to the upper sec tion of the die, and is pivotally connected at one end to an upright arm on the die-frame.

The object of this arrangement is to enable the operator to regulate the pressure of the die upon the wire, as may be desired.

D indicates the cooling-pipe, which the wire passes through after its passage through the resisting-die c and before being wound up on the receiving-reel b. This cooling-pipel) has a longitudinal opening, a, through one of its sides, to allow the wire or rod to be passed in to its center, and may then he closed to prevent the escape of the cooling medium by the stop-plate d, which may be bolted or otherwise tightly fitted into the slot. This cooling-pipe is provided with an inlet and an outlet orifice, d and d respectively, to permit the circulation of a cooling medium, such as air under pressure or water, through its body.

In the practice of my invention bundles of wire or wire rods are charged into the furnace and heated to an annealing temperature, preferably a red heat. One of them is then placed on the delivering-reel, and the end of the coil is drawn through the aperture in the front door of the furnace. The lever is then raised, drawing up the top section of the die, and the Wire is drawn through the aperture in the die. It is then passed into the slot in the coolingpipe, and the latter is closed by the stop-plate. The end of the wire is then attached to the receiving-reel,the die-leveris adjusted to force the upper die-section onto the wire with the desired pressure, and the mechanism is putinto movement by applying power to the main shaft b.

The operation of the improvement is as follows: The movement of the mechanism puts the wire under considerable tension as it passes from the furnaeeinto the receiving-reel. This strain is produced by the resistance of the die to the forward passage of the metal, and is greater or less, according to the pressure exerted upon the metal by the upper section of the die,which pressure is regulated, as desired, by the weighted lever, as before described. The effects of the tension are only perceptible, so far as reducing the metal is concerned, during the passage of the wire from the resisting- (lie to the cooling medium. It is very marked here, however, running generally about from twenty to thirty per cent. of the cross-sectional area of the metal. A slight reduction also takes place during the forward passage of the metal through the die. hen the wire passes into the cooling medium, its temperature becomes reduced and its tensile strength increases accordingly; hence no reduction or no material reduction occurs during its subsequent passage to the receiving-reel. Vhen a heat of wire or wire rods have been drawn in this manner, they are again heated and drawn through smaller resisting-dies, and the operations are so continued until the reduction has proceeded to the point desired.

My improvement is especially adapted for the manufacture of heavy wiresuch as used for wire fencing, for telegraph-lines, and for all purposes where-notless than No. 16 is required.

The advantages of the invention are:

First. The cross-sectional area of the wire is greatly reduced at each pass.

Second. The wire may be drawn at a much greater rate of speed than if cold.

Third. I dispense with pickling and washing, and save the labor, time, materials, and waste of iron incidental thereto.

Fourth. The annealing and drawing constitute only one operation, and a saving of time, labor, &c., is consequently secured.

Having described my invention, what I claim, and desire to secure ,by Letters Patent, 1s

1. The combination, with a delivering drum or reel, of a die-frame, a two part die, a weighted lever, a cooling device, and a receiving-drum, substantially as set forth.

2. A cooling-pipe provided with a longitudinal slot to admit the insertion of the rod or wire, and having a stop-plate to close the same and prevent the escape of the cooling medium, substantially as herein described.

3. In a wire-drawing plant, the combina tion, with a two-part die and a weighted lever, for the'purpose described, of a cooling device, substantially as described, for abstracting the heat from the wire after its passage through the two-part die, substantially as set forth.

4. In a wire-drawing plant, the combination, with a furnace having an opening, of a delivering-reel located in said furnace, a twopart die through which the wire is adapted to pass, and a receiving-drum, substantially as set forth.

5. The comhi nation, with a furnace having an opening, of a delivering-reel located therein, a two-part die through which the wire is adapted to pass, a cooling-pipe having an elongated opening, a plate fitting therein, and a receiving-drum, substantially as set forth.

JACOB REESE.

\Vitnesses:

FRANK M. REEsE, WALTER Rnnsn, 

